Loader agitator for concrete mixing machines



March 29, 1932. 'J, EGGER 1,851,242

LQADER AGITATOR FOR CONCRETE MIXING MACHINES Filed Aug. 1. 1950 Fatentedj Man-'29; 1 932 7 .rosnrir or coLurr ns, orrro n ,LoAnER -remaon maecom amm me ma as Application filed" Aug sta, 1930; seri n 47 ,353;

This invention relatesto for-icon;

'cretemixers; 1?; g i In the type of mixer- :in 1 which the mixing drum is charged by means of a charging bucket or skip,*so.called,'thatis raisedon'a p vot to discharge; its contents lof sand, gravel and cement into-the drumtthe flow of such contents from the bucketis often so tardyiasto necessitate poundingithe bottomof the bucket "with'a hammer, .heavycba'r'" or other conand compel the movement of; sticking mate and; disfiguresflthe bottomw of the bucket and aggravates, the trouble? A'number of means have heretofore been proposedgc-and patented,

to. automatically bodily, agitate the bucket without suc'h'ipounding,;hencetheobject of the chargingbucket. p Fig. 2- is "a fractional detail in eleva't on v IIII'Fi g. 1',illust rat1- the. present invention .iszto'fprovide E a] simpli;

fied,-improved and accomplishing asimilarresult. W. v

The inventionis embodied in the example hereinshown andTdescribed, the'features of vnovelty being finally claimed. e

' In the; accompanying drawings- Figure 1 is a View 1n elevationshowingmy invention applied to a concrete mixing machine in whichthe mixing drum is of the rtating' but non-tilting type, taken at that side of the machine containing and section on the line a ing on a larger scale the pivot bearing or sup xportfor the bucket, looking to the right. F ig.3 is a similar view Fig. 1,illustrating the agitator arm, looking to the right.

Fig. 4 is a-detail. in elevation and section Fig. 1 with,

looking at the left hand side'of parts omitted to avoid confusion. v

In the views the character 5 designates the mixing drumit being'rotated by means of" suitable mechanism driven'bya suitable ens gine at 6, all as usual; At one end the drum has a charging opening as seen at 9.

- .The character designates thecharging bucket, it having side straps ll, 11, connected attheir'forward ends'to a cross bar 12. The

ends of said cross bar project into socket bear-c constitute the pivoting easilyassemble'dlmeansfor the view being on the line III-III,

cam, projection 26 ancldrivenlby the engine .ter a ings' 13 formed 'castings "14 bolted {t6 ilpright portions of the stationary .frame meme bers1j5,;l5. Thebearingsare upwardly-ins with anti-friction rollers'l6, These-bearings support; for thebucket on which pivot the bucketis raised to and lowered from mixer, venient instrument, adaptedgthereby to shake charging position clined direction the bucket'can beagitated by agitating or shaking, the cross; bar 12. .The

" bottoms of said. sockets are rounded and 1arg+ erthanthe anti-frictionbearings so that when thebucket is vibrated bypressure in a horizontal' direction the bucket is'also given an up and down movement by said bearing. The i inclined lip atthe lower sideofthe bearing,

socket prevents the bucket from being shaken out or said bearing while theopening tjofthe earing r permits the easy; dropping; of the vcrossbarandrollersinto them.

..-c.Qll. zm "r k Shams .ip l r le men 7 a frame members 15, 15 are, secured shaker" Y crankflarms lf, .17, each having threaded 80 throughlitslupperend a set screw ,18, the point ofzwhich bears againstazprojecting plate '19 secured to the. outerv face ofTthe strap 11. .7 On the 'end'foi the-rock shaft 16, wheresit being to remove andhold the arm from operat1ng':pos1tion except Vlwhen the a loader bucket is elevated to drum.chargingposition;

1 Journaled in a suitable bearing 24 secured tothe frame member v.lfi nearer the engine is a large sprocket wheel 25 having on its face a is a small-sprocket wheelQ'Z having thereon a sprocket chain 28 that large fsprocketwheell25 .for driving the lat meansbf cables'30winding and unwinding o "f dlnspoolsiil on a shaft 32, asusual.

rial-from the bucket. Such pounding indents projects beyond the frame member nearer-the v engine,issecured a] rocker arm 20 that has [at its upper endiani antifriction-roller 21. -.The lower end or said arm 20 is provided extends around the The anti-friction roller 21 is adapted to be brought into the path of the cam projection 26 whenthe loader bucket is elevated into charging position by the contact of the plates 19 with the rocker arms 17; and when the loader bucket is lowered to ground position the weight 23 removes the roller'Q-l from said path but only tothe extent limited by'the iontagt of the rocker arms 17 with the cross Each time the bucket israised to charging' position it is agitated by the means described to accelerate and insure the di charge of its load into the mixing drum, and each time the bucket is lowered to ground position the agi tater is rendered inoperative thereby avoidi-ng nnise otherwise made by the action of the cam I projection on the roller and relieving the engine of t'he work of operating the same.

The forms 'of the'parts can be changedv witthoutndeparting'from the gist of the invention as claimed. What I cla'imis: i '1. In a concrete ing a mixingdrum; an engine for rotating the drum,- loader bucket for charging the drum, sali'd'loader bucket pivoted for raising the bucket to charging position, means acting-on the bucket when in drum charging position "for agitating the bucket on said pivot consisting of a rocker arm and a wheel independent of the drum, said wheel provided a cam turned by the engine acting on sayidrocker arm. y

2. In a concrete mixing machine including a mixing drum, an engine for rotating the drum, and a loader bucket for charging the mixing drum; an enlarged stationary socket bearing for directly andpivotally i the loader bucketand bucket when in drum charging position for bunny" vibrating the lim the loader bucket on smi mixing machine includv supporting means acting on the a mixing drum, an en ine for rotating the drum, a loader bucket or charging the mixing drum, an enlarged stationary socket hearing for pivotally supporting the mixing and means driven by the engine independently of the mixin drum for vibrating the loader bucket on sai socket bearing when the bucket is in drum charging position, said last named means including a wheel provided witha cam. V I

amixing machine includa mixing drum, an engine for rotating the'di'u'm', 'aleaaer" bucket for charging the mixing drum, ancnlarged stationary socket bearing for pivotally supporting the mixing 6mm, and 1m driwenby the engine independently of the mixin drum fol-vibrating socket bearingwhen the bucket is in drum chargingpositiori, :said last named means including a rocker arm acting on {the bucket and a wheelpnovided with a cam acting thereon. ,c 7.In ac0ncrete"1nixi machine inch a" mixing drum; an engome for rotating-the druln'ya: oader bucket r charging :the mix ing drum; an enlarged stationaryisocketbem" ing'tor pivotally supporting said bucket" ma means driven by t e engine independntly of the mixi drumfor vibratingthe loader bucket on said socket bearing'w-hen the bucket is 'indrum' charging position, said last named means includin a rocker arm acting on the buckeg' amd a w eel provided with a cam acting ther'eon', and'means whereby said-rocker arm, is withd awn fromo crating position when the bucket "is lowered rom druin chargin osition. I "JOSEPH EGGERT.

bucketon said socket 7 8. Ina concrete mixing machinefincluding amixfing-drum,"an en'" e forrotating the -and aloader buc ietfor chargingthe 4m enlarged stationary socket bearing for direct ing the loader buc ing on the bucket position saids' 'ket bearing and means for releasing said wiibratingmeans from operating position when the bucket moved from discharging position. v I 4.111 a doncrete mixing machine including a mixing-drum, anengine for rotating the when in drum charging and pivotallysupportet, agitating meansactfor ,bodily vibrating the bucket on drum, a-loader bucketfor charging the mixi in}; drum, bearing-for pivotally sup drum, and means driven pendently of the mixing orting' the mixing drum for vibrating an enlarged stationary socket p y the engine inde- I the leader bucketon said socket bearingwhen the bucket is in drum charging position.

5. In a concrete mixing machine including 

